斜坡堤稳定性分析及地基处理方案比选

基于有限元强度折减法模拟了典型的斜坡堤结构,分析斜坡堤稳定性影响因素对其安全系数的影响,结果表明强度参数和坡率与安全系数成正相关、荷载和坡高与安全系数成负相关,而水位与安全系数无明确相关性,并据此提出了相关建议。斜坡堤地基处理方案的选取,主要根据周边工程案例、经验、造价以及施工能力等进行主观综合比选,缺乏指标性的综合比选。针对此问题,采用模糊综合法综合比选方案指标,建立了地基处理方案的模糊综合评价模型,并通过具体工程项目进行实例验证,结果表明该模型实用并有效。

Slopping breakwater stability and comparison of foundation treatment scheme

Based on the finite element strength reduction method,the typical slopping breakwater structure is simulated,and the influence of factors affecting the stability of the slope embankment on its safety factor is analyzed.Results show that strength parameters and slope ratio are positively correlated with safety factor,while load and slope height are negatively correlated with safety factor.However,there is no clear correlation between water level and safety factor.Some related suggestions are put forward.The selection of foundation treatment schemes for sloping embankment is mainly based on the surrounding engineering cases,experience,cost and construction capacity,etc.It lacks the comprehensive selection of indicators.Aiming at this problem,a fuzzy comprehensive evaluation model of foundation treatment scheme is established by using the method of fuzzy synthesis to synthetically compare and select the scheme index.The model is verified by an actual project,and the results show that the model is practical and effective.